Yellow-billed Duck - Anas undulata

Names

Lists

• Birds
• Ducks, Geese & Swans (Anatidae)

Valid life stages

• unknown
• adult
• juvenile
• first autumn
• first winter
• first summer
• second winter
• second summer
• first calendar year
• second calendar year
• third calendar year
• third winter
• fourth calendar year
• third summer
• immature
• subadult
• egg
• eclipse plumage
• adult, winter plumage
• adult, summer plumage
• pullus
• deviant

Valid activities

• unknown
• foraging
• hunting
• flushing
• flying over
• calling
• nest indicating behavior
• resting
• mating
• courting / singing
• territorial behaviour
• territory
• present
• flying northeast
• flying northwest
• flying southeast
• flying southwest
• flying north
• flying south
• flying east
• flying west
• at nest
• taking sand bath
• bathing
• grooming